Two Freshwater Fish Added To High-Mercury List

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2008-04-29 12:29

Two more types of freshwater fish in southeastern North Carolina have been found to have elevated levels of mercury. They are yellow perch caught south and east of Interstate highway 85, and black crappie caught south and east of I-95. State public health officials are urging pregnant women and children to avoid eating those fish altogether, and urging others to limit their consumption of those fish to no more than one meal a week.

The two species join a growing list of freshwater and saltwater fish that are high in mercury. The state's high-mercury list now includes the following freshwater fish: blackfish (bowfin), wild catfish, jack fish (chain pickerel), warmouth and yellow perch south and east of I-85 and largemouth bass across the state, as well as black crappie south and east of I-95.

Ocean fish on the state's high-mercury list include canned white tuna (albacore tuna), all fresh or frozen tuna, almaco jack, banded rudderfish, cobia, crevalle jack, greater amberjack, South Atlantic grouper (gag, scamp, red and snowy), king mackerel, ladyfish, little tunny, marlin, orange roughy, shark, Spanish mackerel, swordfish and tilefish.

Pregnant women, women who may become pregnant, and children under age 15 should not eat any high-mercury fish. Other people should eat no more than one meal a week of those fish.

In people, mercury mostly affects nerve cells in the brain and spinal cord, especially in unborn babies and young children. Prenatal mercury exposure can affect the way children think, learn and problem-solve later in life. Adverse health effects can also occur in adults at much higher doses.

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